Forecasters at the National Hurricane Center said Florence is expected to be an extremely dangerous storm by the time it nears the coast of South Carolina or North Carolina on Thursday. The center said hurricane and storm surge watches are expected to be issued Tuesday.

Meanwhile, an area of low pressure has formed in the northwestern Caribbean Sea.

The hurricane center is giving it a 30 percent chance of further development in the next five days.

"We will watch this system as it's already bringing rain to South Florida," Bridges said. "The bottom line is we are getting moisture from this disturbance and we’re getting beach issues, including high seas and rip currents from Florence. The big question behind these two systems is whether Isaac will be a player for the Orlando area."